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First of all, make sure it is road noise, rather than sway bar end links, axle nuts, loose/worn shocks, CRAPPY TIRES!, targa top, "rocking" chair/driver's seat, etc.
The forum has easy, simple fixes for all the above, and I mean really simple. Just do a search for any of them.
First of all, make sure it is road noise, rather than sway bar end links, axle nuts, loose/worn shocks, CRAPPY TIRES!, targa top, "rocking" chair/driver's seat, etc.
The forum has easy, simple fixes for all the above, and I mean really simple. Just do a search for any of them.
Nothing will stop all of the noise, but it can be greatly reduced for sure.
1) Dependiong on your tires, and how much they are worn, is the "major" contributor of road noise for sure. (What tires are you running with?)
2) Sound deadening material such as Dynamat, or similar products will deaden any outside noises coming through the plastic liners or body panels to the interior.
3) just ahead of the rear wheels, is a cavity void with a small bag of insulation to try to alleviate the noise carry from the rear tires, but it's too little to actually prevent all of it. - filling that void with an extra large bag, or other insulation will help some.
4) A rear partition will help keep some of the noise in the rear hatch, rspecially if you also have the cover for the hatch window closing off the rear completely.
how do I eliminate road noise in the cabin of my 2012 corvette coupe
It will never completely go away. My car is nearly as quiet as my son's Cadillac XTS and definitely quieter than our Honda Oddity van. This made a big difference but added about 50 pounds to the car.
Inside doors.
Inside hatch and behind seats
Inside wheel wells behind liner
I used Noico 50 and some 80 mil inside car and Peel and Seal outside. Dynamat is way over priced as are some of the other products - in my opinion.
Nothing will stop all of the noise, but it can be greatly reduced for sure.
1) Dependiong on your tires, and how much they are worn, is the "major" contributor of road noise for sure. (What tires are you running with?)
2) Sound deadening material such as Dynamat, or similar products will deaden any outside noises coming through the plastic liners or body panels to the interior.
3) just ahead of the rear wheels, is a cavity void with a small bag of insulation to try to alleviate the noise carry from the rear tires, but it's too little to actually prevent all of it. - filling that void with an extra large bag, or other insulation will help some.
4) A rear partition will help keep some of the noise in the rear hatch, rspecially if you also have the cover for the hatch window closing off the rear completely.
Good Luck in the endeavour.
Where exactly is the cavity you describe in #3 above? How big is it and what do you put in it? Is there one in the center or one in front of each tire?
Thanks
Last edited by 88redconvert; Feb 19, 2017 at 10:02 AM.
Where exactly is the cavity you describe in #3 above? How big is it and what do you put in it? Is there one in the center or one in front of each tire?
Thanks
If you remove the rear wheel liners, you will then see the cavity in the front of the wheels and the bag of insulation (wrapped in black plastic) put there from the factory.
As mentioned, with the rear liners removed, you can install Noico type material above the liner, on the metal/plastic panels in that cavity, and put more bagged insulation to fully engulf that cavity to try to prevent as much tire noise sound travel as possible from outside to inside the vehicle.
There is no end to how much you can use, but as mentioned, the noise will never be completely eraticated.
Here is a pic to remove the rear wheel liner.
Where exactly is the cavity you describe in #3 above? How big is it and what do you put in it? Is there one in the center or one in front of each tire?
Thanks
Here's a picture of the cavity area behind the passengers side door. There's one on the driver's side too. I lined it with Peel and Seal then put the factory foam roll back in. All this sound proofing works great for tire and road noise. It even helps keep traffic noise out. But if anyone is trying to stop exhaust drone or muffler noise with this method I think they will be disappointed. Also, if you do this area, seal the gap between the lower panel and the upper panel so that you don't have tiny pebbles showing in the gap all the time. Best regards
If you remove the rear wheel liners, you will then see the cavity in the front of the wheels and the bag of insulation (wrapped in black plastic) put there from the factory.
As mentioned, with the rear liners removed, you can install Noico type material above the liner, on the metal/plastic panels in that cavity, and put more bagged insulation to fully engulf that cavity to try to prevent as much tire noise sound travel as possible from outside to inside the vehicle.
There is no end to how much you can use, but as mentioned, the noise will never be completely eraticated.
Here is a pic to remove the rear wheel liner.
Here's a picture of the cavity area behind the passengers side door. There's one on the driver's side too. I lined it with Peel and Seal then put the factory foam roll back in. All this sound proofing works great for tire and road noise. It even helps keep traffic noise out. But if anyone is trying to stop exhaust drone or muffler noise with this method I think they will be disappointed. Also, if you do this area, seal the gap between the lower panel and the upper panel so that you don't have tiny pebbles showing in the gap all the time. Best regards
i just ordered the BlockIt mat from TKO performance.... too lazy to pull carpet and plastics, will see how well it works (should be delivered today) and report back
alrighty, finally got it in. obviously super simple to put install, in a 10 min trip to the store... noticeably quieter. i have LTH, high flow cats, and factory npp. to me it sounded like i had the flaps closed.. maybe even more quiet than that. one thing that i don't like, (easy fix and technically a non issue) is that unless you have a mat to cover it i could see it ripping easily with things you place in the hatch. if you have the Lloyds mat, i think you would have the perfect combo.
Tomorrow the car is going to have the Borla ATAK installed, so when transporting the exhaust to the shop i will take out the BlockIT. after the exhaust i will get to see what it sounds like without the mat and then with it later. is it worth the $230?? to me yeah, because i am lazy don't want to pull all the carpet out.... so with that being said, money well spent to me
agreed but not sure if I have seen many posts over the years referring to that location as a "troubled area". Always see talk about transmission heat but not much about road noise. I got an extra box so I guess I should stop being lazy and just do it....
I guess it's all relative. Aside from the exhaust note (which I happen to like), my '08 seems quiet as a tomb compared to my '05 Carrera. Wind, tires, road bumps, rattles...all of it is twice as loud as the Vette.
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Originally Posted by Travlee
alrighty, finally got it in. obviously super simple to put install, in a 10 min trip to the store... noticeably quieter. i have LTH, high flow cats, and factory npp. to me it sounded like i had the flaps closed.. maybe even more quiet than that. one thing that i don't like, (easy fix and technically a non issue) is that unless you have a mat to cover it i could see it ripping easily with things you place in the hatch. if you have the Lloyds mat, i think you would have the perfect combo.
Tomorrow the car is going to have the Borla ATAK installed, so when transporting the exhaust to the shop i will take out the BlockIT. after the exhaust i will get to see what it sounds like without the mat and then with it later. is it worth the $230?? to me yeah, because i am lazy don't want to pull all the carpet out.... so with that being said, money well spent to me
Glad it arrived. If your impressed with the Blockit now, there is a chance it will get better. Because we roll the blockit to ship it, sometimes the pieces have a slight curl to them. Once they settle down and lay completely flat, you get better noise reduction/damping.
The top layer is surprisingly tougher then you think. If you try to pick at it you will find it won't tear. But yes, many do place a Lloyd mat (or similar) on it for simply the esthetics.
Thank you for your business, and your kind words and for the time you took to post!
If your impressed with the Blockit now, there is a chance it will get better. Because we roll the blockit to ship it, sometimes the pieces have a slight curl to them. Once they settle down and lay completely flat, you get better noise reduction/damping. 